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Intracranial Anaplastic Astrocytoma after Radiotherapy for Craniopharyngioma
권현조,송시헌,김선환,최승원 대한신경외과학회 2004 Journal of Korean neurosurgical society Vol.35 No.5
The authors describe a case of 17-year-old male with anaplastic astrocytoma in the basal ganglia and brain stem 11 years after surgical excision and local irradiation(5480cGy) for craniopharyngioma. There is no recurrence at the primary tumor site. Because of a geometric coincidence between the tumor location and the radiation field, radiation therapy is strongly implicated as a cause of this anaplastic astrocytoma.
만성 경막하혈종에서 수술 후 방사선학적 변화와 재발과의 관계
권현조,염진영,김선환,고현송,송시헌,김윤 대한신경외과학회 2004 Journal of Korean neurosurgical society Vol.35 No.4
Objective : The authors analyzed the postoperative radiological changes in chronic subdural hematoma(CSDH) after operation and its relation to the recurrence. Methods : After reviewing the postoperative imagings of CSDH patients(90 cases, 70 patients), we classified them into 4 types according to the radiological changes in the hematoma area and calculated the prevalence of recurrence respectively. We also reviewed the preoperative images of the same patients and classified them into 4 types according to hematoma density and internal structure and investigated the prevalence of recurrence after operation respectively. Results : The low density area in postoperative computerized tomography(CT) showed the same Hounsfield unit and signal intensity in magnetic resonance imaging(MRI) with the CSF in ventricles. The recurrence of CSDH was lower if the hematoma was totally replaced with CSF (Type III) or the brain re-expanded completely with total hematoma drainage (Type IV) on postoperative imagings(p<0.05). The location of catheter tip can be used as a valuable indicator of the boundary of newly collected CSF and residual hematoma. Conclusion : The low-density area found on postoperative CT medial to the residual hematoma in CSDH is filled with CSF and it can be a helpful factor in reducing the recurrence. The catheter tip location can be used as a good index and we can remove the catheter immediately after confirming the tip location on the inner surface of the skull.
권현조,권오기,고현송,이상형 대한뇌혈관외과학회 2011 Journal of Cerebrovascular and Endovascular Neuros Vol.13 No.1
With the development of devices and techniques, including complex shape coils, balloons, multiple catheter techniques, and intracranial stents, endosaccular treatment of ruptured or unruptured wide-necked cerebral aneurysms has advanced rapidly with respect to indications and outcomes. In contrast to other options, stent-assisted aneurysm embolization has a distinct feature in which the stent is permanently implanted in the cerebral vessels. Therefore, we must consider the short-term effect of stent-assisted aneurysm embolization in the prevention of coil migration and adverse thrombogenicity, but also the permanent mechanical, hemodynamic, and biological influence on the parent vessels and the aneurysm. We have reviewed the current experimental and clinical data on stent-assisted coil embolization of cerebral aneurysms.
‘되기(becoming)’ 관점에서 1세반 초임교사 바라보기
권현조,전홍주 인하대학교 교육연구소 2020 교육문화연구 Vol.26 No.5
The purpose of this study is to understand how the novice childcare teachers are growing by changing themselves from the perspective of 'becoming' by Deleuze and Guattari. To this end, an in-depth interviews were conducted with three 1-year-old teachers working in childcare centers in Seoul. The collected data were analyzed by a narrative method based on the main concepts emphasized in 'becoming'. The results of the study were as follows: First, the free generation of novice teachers and the start of rhizomic thinking began with encountering oneself as a 1-year-old class teacher. Second, novice teachers were relocating themselves as teachers and experiencing a customary territorial zone called teaching culture. Third, the novice teachers who connected to the territorial zone in compliance began to reveal their desires through experiencing ego of creation through ritualistic thinking. Fourth, novice teachers gradually felt themselves as an organless body and began to draw free and flexible escape lines for the various worlds they were connected to. Fifth, novice teachers who were completely relocated as teachers experienced a different stratification than beforethey become teachers in the deterritorialization zone, and were constantly changing by creating flexible escape lines through rhizomic reasons. Based on the results of this study, it is expected that a priori understanding of novice teachers will be relocated, and along with this, research to understand novice teachers from various perspectives will be active. 본 연구의 목적은 1세반 초임교사들이 어떻게 그들을 변화시키며 성장하고 있는가를 알아보는 것으로 들뢰즈와가타리의 ‘되기’관점에서 초임교사들의 성장을 이해하는 것이다. 이를 위해 서울 소재 어린이집에 근무하고 있는1세반 초임교사 3명을 대상으로 심층면담을 진행하였다. 수집된 자료는 ‘되기’에서 강조하고 있는 주요 개념들에기반하여 내러티브 탐구방법으로 분석되었다. 연구결과는 첫째, 초임교사들의 자유로운 생성과 리좀적 사유의 출발은 1세반 담임으로서의 자신과 마주치는 것에서시작하였다. 둘째, 초임교사들은 교사로서 자신을 재배치시키면서 교직문화라는 관습적 영토화 지대를 경험하고있었다. 셋째, 순응으로 영토화지대와 접속한 초임교사들은 리좀적 사유를 통해 생성의 자아를 경험하며 그들의욕망을 드러내기 시작하였다. 넷째, 초임교사들은 점차 기관없는 신체로서의 자신을 느끼며 그들이 접속하고 있는다양한 세상에 대해 자유롭고 유연한 탈주선을 그리기 시작하였다. 다섯째, 온전하게 교사로서 재배치를 하게 된초임교사들은 탈영토화 지대 안에서 이전과는 다른 지층화를 경험하기도 하며 리좀적 사유를 통해 끊임없이 유연한탈주선을 만들어내며 변화하고 있었다. 본 연구결과를 토대로 초임교사들에 대한 선험적 이해가 재배치되고, 이와함께 초임교사들을 다양한 관점에서 이해하는 연구가 활발해 질 것을 기대한다.